I'm a low user and like many others my payback has always paid for my goodybag since the day I joined. So for me giffgaff suits very well. However I can see that for the majority of normal, heavier users on giffgaff, this new offer from " smarty" will certainly make them consider a move. Even I looked at the " unlimited " calls offer that goes with it. I recently disposed of our landline as most people call me on my mobile making the landline cost wasted money. I do find though that I have keep a constant eye on my 250 minutes every month from giffgaff and will often choose to call certain people ( those that chat a lot 😀 ) a day or so before a new goodybag is due....just to make sure that I don't run out of minutes. The unlimited calls offered on " smarty" did appeal, getting the money back for unused data (which I rarely use ) also made me think. Time for giffgaff to give thought to another revamp of the goodybags on offer I think. I will stay for the moment but until reading of this other offer , moving networks has never entered my head, this one did make me stop and consider .